3D Scanner Image Binning for Faster Transmission Without Quality Loss
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Solution Overview
Problem
Existing optical 3D scanners face challenges in transmitting high-resolution two-dimensional images to a processing device due to large file sizes, leading to prolonged transmission times without a significant degradation in image quality.
Innovation Solution
A method and device that selectively bin images obtained by a 3D scanner, including index and phase shift images, to improve transmission speed without degrading image quality, by using a combination of cameras and phase shift methods to distinguish object areas and measure depth values.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If all high-resolution two-dimensional images are transmitted without compression, then image quality is maintained, but transmission time increases significantly
Solution Approach 1:
The patent applies local quality by differentiating the treatment of different image types. Index images are compressed through binning to reduce transmission time, while phase shift images are transmitted at full resolution to maintain measurement precision. This selective quality approach resolves the contradiction by optimizing each image type according to its specific requirements.
Solution Approach 2:
The patent segments the image data into two distinct categories: index images and phase shift images. This segmentation allows for differentiated processing where index images undergo binning compression while phase shift images maintain full resolution, thereby reducing overall transmission time without compromising the quality of critical measurement data.
2Productivity
If image compression is applied to reduce file size, then transmission speed improves, but image quality deteriorates
Solution Approach 1:
The patent implements local quality by applying compression only to index images where quality degradation is acceptable, while preserving full resolution for phase shift images where measurement precision is critical. This selective approach maintains overall image quality while improving transmission speed.
Solution Approach 2:
The patent introduces an intermediary classification mechanism that identifies and separates index images from phase shift images. This intermediary step enables differential compression strategies, allowing fast transmission of non-critical index images while protecting the quality of measurement-critical phase shift images.
3Measurement precision
If all images are processed at full resolution, then measurement accuracy is maintained, but data processing load increases
Solution Approach 1:
The patent reduces data processing load by applying full resolution processing only to phase shift images that require measurement accuracy, while using compressed binning for index images where full resolution is not critical. This local quality approach significantly reduces overall processing complexity.
Solution Approach 2:
The patent segments the processing workload by separating index image processing from phase shift image processing. This segmentation allows the system to apply computationally intensive full-resolution processing only where necessary, thereby reducing the overall data processing load while maintaining measurement accuracy.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enhances the transmission speed of 3D scanner images to a processing device while maintaining image quality, reducing transmission time without affecting the final 3D image output.
Implementation Method 1
An optical 3D scanner may obtain a plurality of two-dimensional images by using light reflected from an object
Implementation Method 2
obtaining a plurality of phase shift images through a phase shift method by scanning the object using the plurality of cameras
Data Source
AI summary
Provided are a three-dimensional (3D) scanner device, an operating method, and a computer-readable storage medium having stored a program for performing the operating method. An embodiment of the present disclosure provides a 3D scanner device including: a scanner configured to obtain a plurality of index images for setting an area index for distinguishing each area of the object by scanning an object using at least one camera, and to obtain a plurality of phase shift images by scanning the object through a phase shift method; a communication interface configured to receive the plurality of index images and the plurality of phase shift images from the scanner; and a processor configured to generate a 3D image of the object by performing image processing on the plurality of received index images and the plurality of received phase shift images, wherein the scanner is further configured to bin a plurality of index images obtained through a camera selected from the at least one camera among the plurality of index images.